Mitutoyo 614189-531 Square Steel Gage Block 0.149 in Grade 0

Product Description

The MITUTOYO 614189-531 is a square steel gage block measuring 0.149 inches, manufactured to Grade 0 accuracy. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, verify dimensional accuracy, and set comparators in metrology and quality-control environments. Grade 0 represents a high level of dimensional accuracy, making this block suitable for inspection labs, tool rooms, and production-floor calibration tasks. Each unit ships with a Certificate of Inspection, providing traceability documentation required in quality management systems. Machinists, metrology technicians, and quality engineers are the primary users of this component.

This gage block is suited for use in precision measurement applications across manufacturing, tooling, and inspection environments. It functions as a reference standard for instrument calibration, height-gauge setup, and go/no-go verification tasks. The 0.149-inch nominal size fits into block sets or is used individually wherever that specific reference dimension is required. Both industrial production facilities and dedicated metrology labs rely on Grade 0 blocks for high-accuracy inspection work.

Key Features

• Grade 0 accuracy per ASME standards, suitable for high-precision calibration and inspection tasks
• Steel construction provides durability and dimensional stability under typical shop and lab conditions
• 0.149-inch nominal size for precise single-dimension reference or use within a gage block set
• Includes Certificate of Inspection for traceability in ISO and quality management system documentation
• Square form factor for consistent wringing and stable stacking with compatible blocks

Compatibility

Designed as a precision reference standard compatible with standard square gage block sets and accessories conforming to ASME specifications. No specific system or model compatibility was stated in the product data.

Installation Notes

Gage blocks are handled and used by metrology technicians and quality control personnel. Before use, clean mating surfaces thoroughly to remove oils, debris, and burrs that could affect accuracy or damage the lapped faces. Store the block in its case away from temperature extremes to minimize thermal expansion effects on measurements. Do not drop or slide the block across abrasive surfaces, as damage to the lapped faces will compromise accuracy and invalidate the inspection certificate.